3444340421 has 4 divisors (see below), whose sum is σ = 3444596844. Its totient is φ = 3444084000.

The previous prime is 3444340399. The next prime is 3444340439. The reversal of 3444340421 is 1240434443.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2488912321 + 955428100 = 49889^2 + 30910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3444340421 - 2¹⁰ = 3444339397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3444343421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106880 + ... + 135321.

It is an arithmetic number, because the mean of its divisors is an integer number (861149211).

Almost surely, 2^3444340421 is an apocalyptic number.

It is an amenable number.

3444340421 is a deficient number, since it is larger than the sum of its proper divisors (256423).

3444340421 is a wasteful number, since it uses less digits than its factorization.

3444340421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256422.

The product of its (nonzero) digits is 18432, while the sum is 29.

The square root of 3444340421 is about 58688.5033119776. The cubic root of 3444340421 is about 1510.2030954986.

Adding to 3444340421 its reverse (1240434443), we get a palindrome (4684774864).

The spelling of 3444340421 in words is "three billion, four hundred forty-four million, three hundred forty thousand, four hundred twenty-one".